Natura - nature
   actualia - actual entities
     Mundus Plinius - physical world
       naturalia - natural bodies
         [crown] Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
           Clade "neomura" Cavalier-Smith 1987
             Domain Eukaryota Chatton, 1925 - eukaryotes
               Clade neokaryotes Cavalier-Smith 1993 - mitochondrial eukaryotes
                 Clade neozoa Cavalier-Smith 1993
                   Superkingdom Corticata Lankester, 1878
                     Kingdom Chromista Caval.-Sm. (1981) - chromists
                       Subkingdom Harosa Cavalier-Smith, 2010
                         Infrakingdom Rhizaria Cavalier-Smith, 2002
                           Phylum Cercozoa Cavalier-Smith, 1998
                             Subphylum Monadofilosaᵀ Cavalier-Smith, 1997
                               Class Thecofilosea T. Cavalier-Smith & E.E.-Y. Chao, 2003
                                 Subclass Eothecia
                                   Order Cryomonadida Cavalier-Smith, 1993
                                     Family Protaspidae Cavalier-Smith, 1993
                                       Genus Protaspaᵀ A.T. Howe et al., 2011